Yes, indeed! That's where I started, but it wouldn't work because I used caps. Thanks for your patience. Carl

Carl, please inspect the attached trivial file from which you probably infer how to deal with exactly your case. Notice that in Mathematica it is not a good idea to let user-defined quantities have names that begin with a capital letter: see what happens if you use C instead of my modified version of it. Good luck, Ulri Attachments: communityB.nb

Ulrich- Thanks for the input. I had reached the same conclusion after a little search. What I had wanted to do was simply "represent" a complicated function with a capital letter. Instead I have to "define" a function, and since, in Mathematica, caps are used for built-in functions, it may disallow caps for defined functions. Also, it results in some extra baggage, like using m[x] instead of just m, etc. Of course, you knew all this and I am just catching up! Thanks again- Carl

Actually you don't need 'function notation' with '[]' and can work simply with expressions as is done in the appended file. Attachments: communityD.nb

Plot the product of two different functions of theta?